Dust-arrester



(No Model.)

W. HAGBNBERG.

v DUST ARR-ESTER. No. 333,217. Patented Dec. 2 9, 1885.

UNITED STATI-3s vPatri-mr OFFICE.

VILLIAM HAGENB'ERG, OF TOLEDO, OHIO.

D UST-ARRESTE R.

SPECIFICATION forming part of Letters Patent No. 333,217, dated December29, 1885.

Application iled June 24, 1885. Serial No. 169,667. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM HAGENBERG a citizen of the United States,residing at Toledo, in the county of Lucas and State of Ohio,haveinvented a new and useful Improvement in Dust-Arresters, of which thefollowing is a specification.

My invention relates to improvements in storage and dust-arrestingstructures, so called.the necessity for which exists inmanufactories-such as planing-mills, cotton-mills, sawing-mills1Sta-which have quantities of material, refuse or otherwise, to becarried from place to place or removed from the premises or tostoring-receptacles for fuel, and which commonly contain quantites ofine dust, the said materials usually being conveyed through tubes orpipes by currents of air, put in motion by exhausting-fans; and whilethe coarser and heavier parts of the said materials are easily depositedin the desired place or receptacle by a careful adjustment of the forcesof the air-blastv and gravitation, it is found that When this end isbest attained an almost insurmountable difficulty arises in separatingfrom the conveying air-blast the light powdery dust contained in thesaid material bei 'ing conveyed,which, instead o f precipitating withthe heavier materials, is carried away by the escaping air out of thecontaining building or apartments into the open atmosphere, and,depositing upon buildings, lumber-piles, alleys, streets, andneighboring property, becomes a source of many inconvenieneies anddangers, among which may be mentioned a very large increase of firerisk. By every system and device employing an airblast for removing saidrefuse material and having connected therewith a dust-arrester composedof and using burlaps or openly- Woven fabrics as a separator of the dustand air, by passing through said fabrics with an ascending motion anddischarged at the same or at a greater altitude than which it enters thesaid fabrics, in such cases, almost without an exception, the air isdischarged into the open atmosphere through a lattice-work placed uponthe roof of the building, and said lattice is usually, for economicpurposes,made of wood, but if made of iron it is but little better forbeing of an open nature, and the Whole internal construction of thedust-arframes, e., and the excessively-fine and aln most explosive dustwhich it is the object of the mechanism to remove.` It will therefore beseen that any mechanism of such a nature Which has for its object theremoval of said dust'by means of an air-blast, as hereinbefore named,and discharging at or above the top of the building, either openly orthrough a lattice-work, or in any known way, is an inflammable andhighly-dangerous attachment to a building.

rlhe nature of my invention consists in so constructing and operatingthe necessary and most approved appliances known in the arts forremoving said dust, and iu such a way as that the danger from fire,which is -of paramount importance, shall as far as possible be removed.A second and veryimportant object to be gained is the utilization of theair of the blast for other purposes after it has been freed from thedust, as will behereinafter named and described, which air in the oldmethods of construction is. so far removed from any accessible pointbefore it parts with its dust that its further use is practically beyondaccomplishment. I attain these objects by the mechanism illustrated inthe accompanying drawings, in Which- Figure 1 is a perspective view of abuilding containing my improvement, and said building is applied as anannex to a manufactory where itis desired to use this apparatus; but thesaid building may be constructed as a part of any suitable building, or,if thought best, it may be a separate structure, and entirely isolated'isk from the manufaetory for which it is operated. y

IOO

shown in Fig. 3, taken on line C, same figure.

Similar letter refer to similar parts throughout the several views.

Returning to Fig. 1, it will be seen that this illustration representsthe building as being open on the side D, toward which we are now ,otheris being drawn from through the hatch- Ways G,'which may be opened byany approved method, such as a sliding or swinging gate. The tops ofthese vaults are partially covered, to assist in retaining the incomingmaterials,with slats H, having openings between them whichare aboutequal in width "to the width of the slats.

The air, being the carrying-vehicle of the shavings, necessarily passeswith the shavings into the vaults E below the level of the lattice H,and must have an outlet or escape,which itynds between the slats H,carrying` with it the fine particles of wood and other dust which willnot settle with the shavings. The removal of this dust from l theescaping air by a practically fire-proof .'mechanism, as before stated,is the primary object of my invention.

This is accomplished in the compartment I.

The compartment I contains a suit-able number of dust arresters,preferably opening f'through and attached to the partition 4J one ofwhich is shown in Fig. 2, and is constructed as follows: It has a topand lower case, K, and corner-supports L. (Shown in Fig. 4..) To theseparts are secured,with tacks or otherwise, burlap`s,77 so called, or anygood open fibrous fabric, N, Fig. 2, and to the lower end of each ofthese dust-arresters is attached a 45 door, R, or means of closing thesame when in operation, the objects of the said doors being to hold thecollecting dust until discharged upon the iloor S or into any suitableremovingconveyer. The air in passing from the vaults E, as before named,takes the directions of the arrows M, and passing down the tubes ordustarresters A the particles of dust are retained in the meshes of thefabric N, while the air passes freely through into the compartment I,and from this compartment I it may be conducted into the open atmospherethrough a lattice, O, or any other suitable outlet, and in very exposedplaces-such as in thickly-builded cities where the fire danger isgreat-an eX- tra stack or chimney, T, may be constructed for conveyingthe said air away, not because of -there being any combustible materialsstill remaining in the air, but for the purpose of removing the saidoutlet as far as may be from the combustible material within thebuilding and from the danger of Contact with fire without. The saidstack is also a help to the draft. After the air-blast has passedthrough the meshes of the fabric, being now in an accessible locality,it may be conducted away in tubes, to be used for Ventilating or coolingpurposes, or for draft and combustion uses in heating andsteam-generating, Src., and the pressure may at all times be regulatedby an adjusting mechanism connected with the lattice O or by means ofchinineydampers,when desired to be used for Ventilating and coolingpurposes, or for draft and combustion in making steam, 85e.

Any suitable valve or gate may be applied in the pipe F, that theattendant may regulate the admission into either of the vaults atpleasure.

I do not confine myself to the form of dustarrester shown in Fig. 2, forone of equal value' and utility may be constructed, as shown in Fig. 3,wherein the open fabric N is applied upon only two sides, P and Q, theoperation and results being identical. When this plan is carried out, asherein 'shown and described, it is obvious that the whole apparatus ispractically fire-proof, and that the escaping air can, in a largemeasure, be utilized.

I am aware that prior to my invention storage and dust-arrestingstructures of various forms have been known and used, most of which areoperated by means of an air-blast, in connection with openly-meshedfabrics for arresting the dust; but in every instance known to me theseelements are used in combination with outlets near or upon the top ofthe roof of the containing-building. I dol not therefore claim such acombination, broadly.

What I claim as myinvention, and desire to secure by Letters Patent, isq

l. In a storage and dustarresting structure having one or more air andmaterial conveyers, F, discharging into the vault or vaults E E, thedust-arresting compartment I, adjoining or interposed between saidvaults, when the said compartment I is provided withdownwardly-discharging dust-arresting tubes A, which open at or neartheir upper extremity for the reception of dust and the air conveyingthe same in their passage from' the vault or vaults E E, substantiallyas shown and described.

2. In a storage and dustarresting structure having one or more air andmaterial conveyers. F, discharging into the vault or vaults E E, andhaving the dustarresting compartment I adjoining or interposed betweensaid vaults, the perforated top covering, J, of the dust-arrestingcompartment I, when the said perforations open to and connect with 'thedownwardly-discharging dust-arresting tubes A, substantially as shownand described.

3. In a storage and dust-arresting structure, the combination of theconveyer or conveyers F F, the vault or vaults E E, dust-arrestingcompartment I, adjoining or interposed between said vaults, with itstubes A, when said tubes A have opening and closing outlets at theirlower extremities for regulating the disl'OO IIO

to 5. In a storage and dust-arresting structure having the conveyer 0rconveyers F F and the vault or vaults E E, through which thedust-conveying current is passed, the slatted floor H, located in theupper part of the vault or Vaults E E, arresting the coarser refuse I5matter, substantially as shown and described.

Y WILLIAM HAGENBERG. Witnesses:

JAMEs WEILAND, H. J. COLBURN.

